Finding the Fourth Proportional to 13,196.73, 19,797.98 and 4,431.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.73 : 19,797.98 = 4,431.42 : x
2. Step 2: Convert to fraction form
   13,196.73/19,797.98 = 4,431.42/x
3. Step 3: Cross multiply
   13,196.73x = 19,797.98 × 4,431.42
4. Step 4: Simplify right side
   13,196.73x = 87,733,164.53
5. Step 5: Solve for x
   x = 87,733,164.53/13,196.73
6. Step 6: Final answer
   x = 6,648.10